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  • Title: Respiratory Syncytial Virus-Associated Respiratory Diseases in Children and Adults.
    Author: Tenenbaum T, Liese J, Welte T, Rademacher J.
    Journal: Dtsch Arztebl Int; 2024 May 03; 121(9):303-312. PubMed ID: 38652840.
    Abstract:
    BACKGROUND: Respiratory syncytial virus (RSV) is a common cause of lower respiratory tract infections (LRTI), particularly in neonates, infants and young children, with approximately 33 million infections worldwide each year. 1-2% of episodes lead to hospitalization. There are hardly any reliable epidemiological figures on hospital - ization in adults, whose burden of disease from RSV is probably markedly underestimated. METHODS: This review is based on publications retrieved by a selective search in PubMed, with particular attention to recommendations for the prevention of RSV infection. RESULTS: There is no approved antiviral therapy for clinical practice, but preventive strategies are increasingly becoming available. Passive immunization in infants is well tolerated and highly effective, as is the active vaccination of pregnant women to prevent severe RSV infection in young infants. The former was found to lower the frequency of severe LRTI (5/4037 in the vaccination group vs. 19/4031 individuals in the placebo group), yielding an efficacy of 75.7%; for the latter, the corresponding findings were a reduction to 19/3682 in the vaccination group vs. 62/3676 in the placebo group, or 69.4% efficacy. For the active vaccination of older adults, both a recombinant vaccine with adjuvant and a bivalent vaccine have recently been approved. These, too, are well tolerated and highly effective: the former lowered the frequency of severe LRTI to 1/12466 in the vaccination group vs. 17/12494 in the placebo group (94.1% efficacy), while the latter lowered the frequency of LRTI with 3 or more manifestations to 2/17215 in the vaccination group vs. 14/17069 in the placebo group (85.7% efficacy). CONCLUSION: The approval of new RSV-specific monoclonal antibodies and active vaccinations enables targeted prevention of RSV infection in the main population groups at risk.
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